Finding the Fourth Proportional to 154,095,647.41, 212,651,942.25 and 84,479,533.62
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Solution
The fourth proportional to 154,095,647.41, 212,651,942.25 and 84,479,533.62 is: 116,581,728.34
Step by Step Solution
- Step 1: Write the proportion equation
154,095,647.41 : 212,651,942.25 = 84,479,533.62 : x - Step 2: Convert to fraction form
154,095,647.41/212,651,942.25 = 84,479,533.62/x - Step 3: Cross multiply
154,095,647.41x = 212,651,942.25 × 84,479,533.62 - Step 4: Simplify right side
154,095,647.41x = 17,964,736,904,667,174 - Step 5: Solve for x
x = 17,964,736,904,667,174/154,095,647.41 - Step 6: Final answer
x = 116,581,728.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.